C实例 立方根

#include <stdio.h>



double cubeRoot(double n) {

   double i, precision = 0.000001;



   for(i = 1; (i*i*i) <= n; ++i);         //Integer part



   for(--i; (i*i*i) < n; i += precision);  //Fractional part



   return i;

}



int main() {

   int n = 125;



   printf("Cube root of %d = %lf", n, cubeRoot(n));



   return 0;

}